To be blunt, I don't give a shit about what Republicans do. They're on the whole terrible. It's like when I was a child and being scolded by my mother and responding with "B-b-but my friend Joey's parents let him _____________!" The response to that was usually a quick "I don't care one bit what Joey's parents let him do."
I can hold on to be the undeniable fact that Republican morals reside in the same place shit goes after I flush the toilet, while expecting better from people who claim to represent me. Omar knows better, and she needs to do better, regardless of what's happening on the other side of the aisle.
Pro-Palestinian advocates have been beaten over the head with the "anti-Semitism" cudgel for generations, and you're further enabling this by mischaracterizing her tweets under that lens. It's not anti-Semitic to point out that the pro-Israeli lobby, and pro-Israeli mega donors, use their political donations to drive policy outcomes favorable to their views. That's what lobbies do, and AIPAC is the pro-Israel lobby.
The idea that we can call out undue influence of donor money in all areas except when it comes to Israel is nothing more than an attempt to stifle the debate surrounding our policies towards that country. This is nothing like the true anti-Semitic tropes painting someone like George Soros as a shadowy puppet-master pulling the strings of the global elite with his hoarded wealth. This is pointing out the reality of what happens in the daylight, transparently, openly, and in the same way we discuss lobbies for every other aspect of the political debate.
We should police our language when the attacks are valid. These attacks are not being done in good faith, and the goal is clear. There's no need to enable them any further.